How do I create a mod counter using IC 7490?

How do I create a mod counter using IC 7490?

It can work as a mod-6 counter by supplying pulse at input 1 and grounding reset pins R3 and R4 and connecting QA with input 2. 7490 IC can work as BCD (binary coded decimal) counter. It is used to store decimal digits in the form of 4-bit binary numbers.

Which mod counter are present in 7490?

Explanation: In a 4-bit binary ripple counter, four master-slave flip-flops are internally connected to provide a Divide-by-2 & divide-by-8 bit counter. 8. Which of the following is a decade counter? Explanation: IC 7490 is called as decade counter or MOD-10.

What is meant by mod 5 counter?

A MOD-5 counter would produce a 3-bit binary count sequence from 0 to 4, as 000 is a valid count state, giving us a binary count sequency of: 000, 001, 010, 011, 100.

How many FFs are required for 4-bit up down counter?

In a 4-bit up-down counter, there are 4 J-K flip-flops required. For modulus-10 counter, N = 10. Therefore, 23 < = 10 < = 24. Thus, n = 4, and therefore, we require 4 FFs.

How do you create a mod and counter?

Design Mod – N synchronous Counter

1. Introduction :
2. Design for Mod-N counter :
3. Step 1 : Decision for number of flip-flops –
4. Step 2 : Write excitation table of Flip flops –
5. Step 3 : Draw state diagram and circuit excitation table –
6. Circuit excitation table –

What is 3 bit up counter?

The 3-bit Synchronous binary up counter contains three T flip-flops & one 2-input AND gate. The output of second T flip-flop toggles for every negative edge of clock signal if Q0 is 1. The output of third T flip-flop toggles for every negative edge of clock signal if both Q0 & Q1 are 1.

What kind of counter circuit is IC 7490?

IC 7490 is a 14 pin DIP (dual inline package) ic. The pin description of 7490 is as follows, Its a BCD counter it can count from 0 to 9 (10 states), hence it is called a mod-10 counter. It has two separate counters, a mod 2 counter, and another mod 5 counter.

What is the pinout of the 7490 decade counter?

The pinout diagram of the 7490-decade counter is shown here. Pin 1 is a clock pulse input of MOD 5 in IC. It’s an active LOW pin to change the state of 3 bits on output. At every high to HIGH to LOW pulse outputs on three bits will be affected.

What does VCC stand for in ICS 7490?

VCC and GND are the input pins of ICs 7490 which is used to give power supply to the ICs. These input terminals generally present in all devices to give power supply to the devices. VCC stands for Voltage Common Collectors and in most cases, it is referred to as high voltage with respect to GND (Ground) terminal.

What is the IC name for the mod Counter?

To solve this issue, we use an IC name 74LS90. The IC contains two MOD counters. One is MOD 2 and the second one is MOD 5 counter. The counter starts counting from 0000 to 1001 and then it resets the value again. The automatic reset makes the counter to start from 0 and end at 9 in decimal.